Mnemo Note Manager is the Horde notes/memos application. It provides Web-based notes and freeform text in a way similar to the PalmOS Note application and shared notepads. It requires the Horde Application Framework and a SQL database for backend storage.

Nag is a Web-based application built upon the Horde Application Framework that provides a simple, clean interface for managing online task lists (i.e. TODO lists). It includes strong integration with the other Horde applications and offers shared task lists.

Turba is the Horde contact management application. It is a production level address book, and makes heavy use of the Horde framework to provide integration with IMP and other Horde applications. It supports SQL, LDAP, Kolab, and IMSP address books.

Ingo is an email-filter management application. It
is fully internationalized, integrated with Horde
and the IMP Webmail client, and supports both
server-side (Sieve, procmail, maildrop) and client-side
(IMAP) rule creation.

The Horde Application Framework is a modular, general-purpose Web application framework. It provides an extensive array of classes that are targeted at the common problems and tasks involved in developing modern Web applications.

ToPIA (short for Tools for Portable and Independent Architecture) is a technical platform abstraction framework. It consists of a persistence module and services for migration, replication, and security.

Wing IDE is a software development environment for Python. It provides powerful editing, code intelligence, refactoring, testing, debugging, and search capabilities that reduce development and debugging time, cut down on coding errors, and make it easier to understand and navigate Python code.